I have a set of 317 heads. I would use them myself but I changed directions with my build and no longer need them. I bought them with 32k miles on them. I took them to a speed shop and had the following work done:

*Tank and clean
*Valve job
*Polished combustion chambers
*Comp Cams 918 springs
*Comp Cams titanium retainers

I bought these and installed them on my car a couple years ago. I only started it a few times and never ran the car. I got a different set of heads to raise my compression ratio. These cars will lower your CR and would be ideal for turbo or supercharged engines, especially if you're running any sort of aftermarket cam and/or a stock bottom end.

This is a really good deal - add up the work & parts and you'll see:
*Good low-mile 317 heads - $200
*Valve job - $150
*Polishing combustion chambers - $100
*Comp Cams 918 springs - $180
*Comp Cams titanium retainers - $240

If you want, I have a set of stock rockers, rocker mounting bars, and rocker bolts. I'll throw them in at no charge.

I also have a set of GM graphite gaskets that I can throw in for and additional amount. They are LS1 gaskets but will work, especially if you are running a 5.7L bore.

$600 + shipping. I will double box them. Sale is contingent on me successfully removing them from my engine. I should be able to take them off next week. Here's a pic from right before I installed them.

 

Can these heads be cut to raise the comp. ratio suitable for a 5.3 running stock pistons? What is the current approx. cc of the chambers? If they can be machined I may be interested providing they're compatible wity a 2000 truck 5.3.
Thanks

 

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Yes they can be cut. And yes they'll work on a Lm7 5.3. Assuming these are uncut they'll lower your comp ration to 8.6:1. Im running these heads on my Turbo s10. This is a good deal so Buy away.